WO2020095431A1 - Construction elevator device - Google Patents

Abstract

Provided is a construction elevator device comprising machine room unit cranes 9a, 9b, 9c that suspend a machine room unit 6 from a support member provided in a hoistway so as to be able to move in the lift direction, wherein the machine room unit cranes 9a, 9b, 9c suspend the machine room unit 6 at suspension points 21a, 21b, 21c. When viewed from a virtual horizontal plane above the machine room unit 6, the distances from the center of gravity G of the machine room unit 6 to the suspension points 21a, 21b, 21c are substantially equal, and the center of gravity G is positioned within a region enclosed by virtual straight lines connecting the suspension points 21a, 21b, 21c. When viewed from a virtual horizontal plane above a work platform 5, the suspension points 21a, 21b, 21c for the machine room unit 6 are positioned outside the contour of the work platform 5.

Description

Elevator equipment for construction

The present invention relates to a construction elevator device.

❖Conventionally, construction elevators have been used to lift materials, etc. at construction sites. A construction elevator device is described in, for example, Patent Document 1. The construction elevator device described in Patent Document 1 includes two lifting devices provided in a support structure above the hoistway above the machine room unit, and the two lifting devices are the machine room unit. To lift.

Further, another example of the construction elevator device is described in, for example, Patent Document 2. The construction elevator device described in Patent Document 2 includes one lifting device provided on the upper part of the machine room unit. This hoisting device hoists the machine room unit by 1: X roping via a plurality of pulleys provided in the machine room unit and the support structure, respectively.

International Publication No. 2016/096694 International Publication No. 2010/100319

However, in the construction elevator device described in Patent Document 1, it is difficult to maintain the stability of the machine room unit because the machine room unit is hung at two points and lifted. Further, since the construction elevator device described in Patent Document 2 performs 1: X roping, ropes (hanging lines) are arranged in a wide range between the machine room unit and the support structure. Therefore, it is difficult to arrange the work carrier between the machine room unit and the support structure, and the work carrier is arranged on the support structure. Further, it is difficult to arrange a plurality of pulleys required for 1: X roping at a desired position of the machine room unit, and it is difficult to maintain the balance and stabilize the machine room unit.

An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a construction elevator device capable of maintaining the stability of the machine room unit without interference between the lifting machine for the machine room unit and the work platform. It is in.

In order to solve the above problems and achieve the object of the present invention, the construction elevator device of the present invention is a support member provided in the hoistway, a work platform and a machine room unit arranged below the support member, A lifting machine for a work platform, in which a work platform is movably suspended in a vertical direction from a support member, and a lifting machine for a machine room unit, in which a machine room unit is vertically movably suspended from a support member, are provided. ..
The machine room unit lifting machine is provided in three or more units, and the machine room unit has three or more hanging points. When viewed from the virtual horizontal plane above the machine room unit, the distance from the center of gravity of the machine room unit to each suspension point is approximately equal, and the center of gravity is located in the area surrounded by the virtual straight line connecting each suspension point. .. The work platform is arranged between the support member and the machine room unit. When viewed from a virtual horizontal plane above the work platform, each hanging point of the machine room unit is located outside the contour of the work platform.

According to the construction elevator device configured as described above, the machine room unit lifting machine and the work platform do not interfere with each other, and the stability of the machine room unit can be maintained.
Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.

It is a schematic block diagram of the construction elevator apparatus which concerns on the 1st Example of this invention. FIG. 3 is a plan view showing a positional relationship between a machine room unit lifting machine, a machine room unit, and a work platform of the construction elevator device according to the first example of the present invention. It is a top view which shows the arrangement | positioning relationship of the lifting machine for machine room units, and a machine room unit of the construction elevator apparatus which concerns on the 2nd Example of this invention. It is a top view which shows the arrangement | positioning relationship of the lifting machine for machine room units, a machine room unit, a cage | basket, and a counterweight of the construction elevator apparatus which concerns on the 3rd Example of this invention. It is a schematic block diagram of the construction elevator apparatus which concerns on the 4th Example of this invention.

An embodiment of the construction elevator device of the present invention will be described below with reference to FIGS. 1 to 5.

1. First Example [Construction of a construction elevator device]
First, the configuration of the construction elevator device according to the first embodiment of the present invention will be described with reference to FIG.
FIG. 1 is a schematic configuration diagram of a construction elevator device according to the first embodiment.

As shown in FIG. 1, the construction elevator device 1 according to the first embodiment is provided in a hoistway 100 formed in a building structure. This construction elevator device 1 includes a first support member 3, a second support member 4, a work platform 5, a machine room unit 6, a support member lifter 7, a work platform lifter 8, and a machine. The lifting unit for room unit 9a, 9b, 9c is provided.

The first support member 3 is fixed to the upper part of the hoistway 100. The second support member 4 has a movable support portion 12 that movably engages with the hoistway 100, and is configured to be movable in the up-and-down direction. The second support member 4 is suspended from the first support member 3 by a support member lifting machine 7.

The work platform 5 is suspended from the second support member 4 by a work platform lifting machine 8 and is configured to be movable in the vertical direction. The machine room unit 6 is suspended from the second support member 4 by the machine room unit lifting machines 9a, 9b, and 9c, and is configured to be movable in the vertical direction.

The machine room unit 6 has a movable support portion 13 that is movably engaged with the hoistway 100. Further, the machine room unit 6 includes a hoisting machine 15, a main rope 16 wound around the sheave of the hoisting machine 15, a car 17 connected to one end of the main rope 16, and another end of the main rope 16. It has a counterweight 18 connected thereto.

The construction elevator device 1 having such a configuration operates the car 17 (counterweight 18) of the machine room unit 6 in the ascending / descending direction, and, for example, conveys a worker for construction work to each floor below the machine room unit 6. .. In addition, an operator installing the elevator device gets on the work platform 5 of the construction elevator device 1 and operates the lifting platform 8 for the work platform while operating the car platform guide rails, counterweight guide rails, tower equipment, etc. To the hoistway 100.

[Hanging point position of machine room unit]
Next, the position of the hanging point of the machine room unit 6 by the machine room unit lifting machines 9a, 9b, 9c will be described with reference to FIG.
FIG. 2 is a plan view showing the positional relationship among the machine room unit lifting machine, the machine room unit, and the work platform of the construction elevator device according to the first embodiment.

As described above, the machine room unit 6 is suspended from the second support member 4 by the machine room unit lifting machines 9a, 9b, 9c (see FIG. 1). Further, the work platform 5 is arranged in the hoistway 100 between the second support member 4 and the machine room unit 6. As shown in FIG. 2, the machine room unit hoisting machines 9a, 9b, and 9c suspend the machine room unit 6 at three points, which are suspension points 21a, 21b, and 21c.

The hanging points 21a, 21b, 21c are drawn on a virtual horizontal plane with the center of gravity G of the machine room unit 6 as the center, and are arranged at positions overlapping the virtual circle C that is outside the contour of the work platform 5. Thereby, when viewed from the virtual horizontal plane above the machine room unit 6, from the center of gravity G of the machine room unit 6 to the hoisting points 21a, 21b, 21c of the machine room unit 6 by the machine room unit lifting machines 9a, 9b, 9c. Are almost equal in distance.

Further, the center of gravity G of the machine room unit 6 is located in the area surrounded by the virtual straight line connecting the hanging points 21a, 21b, 21c. Further, when viewed from a virtual horizontal plane above the work platform 5, each hanging point 21a, 21b, 21c is located outside the contour of the work platform 5.

As a result, even if the working platform 5 is moved up and down, the ropes (hanging lines) of the machine room unit hoisting machines 9a, 9b, 9c and the hanging points 21a, 21b, 21c should not interfere with the working platform 5. You can Therefore, the machine room unit 6 can be lifted without carrying the work platform 5 out of the hoistway 100.

Further, since the load is evenly applied to the hanging points 21a, 21b, 21c of the machine room unit 6, it is possible to effectively prevent the machine room unit 6 from tilting and to maintain the stability of the machine room unit 6. .. Further, it is possible to lift the machine room unit 6 while preventing an overload on one machine room unit lifting machine.

The center of gravity G of the machine room unit 6 changes depending on the size of the hoistway of the target elevator device and the installation position of the machine (hoisting machine). Therefore, the hanging points 21a, 21b, and 21c in the construction elevator device of this embodiment are determined according to the center of gravity G of the machine room unit 6.

2. Second Embodiment [Hanging Point Position of Machine Room Unit]
Hereinafter, a construction elevator device according to a second embodiment of the present invention will be described with reference to FIG.
FIG. 3 is a plan view showing an arrangement relationship between a machine room unit lifting machine and a machine room unit cage of the construction elevator device according to the second embodiment.

The construction elevator device according to the second embodiment has the same structure as the construction elevator device according to the first embodiment described above, except that the machine room unit lifting machines 9a, 9b, 9c is the position of the hanging point of the machine room unit 6. Therefore, here, the hanging point position of the machine room unit 6 according to the second embodiment will be described, and the description of the configuration common to the first embodiment will be omitted.

As described above, the car 17 is arranged below the machine room unit 6 (see FIG. 1). As shown in FIG. 3, the hoistway 100 is provided with a pair of car-side guide rails 101a and 101b for guiding the car 17 in the ascending / descending direction. The pair of car-side guide rails 101a and 101b extend along wall surfaces of the hoistway 100 that face each other.

On the other hand, the car 17 is provided with a pair of car-side guide shoes (not shown) slidably engaged with the pair of car-side guide rails 101a and 101b. Further, the machine room unit 6 is provided with a pair of machine room side guide shoes 31a, 31b slidably engaged with the pair of car side guide rails 101a, 101b. Therefore, the pair of car-side guide rails 101a and 101b guide the machine room unit 6 in the vertical direction.

The hanging point position of the machine room unit 6 according to the second embodiment satisfies all the conditions of the hanging point position of the machine room unit 6 according to the first embodiment. Therefore, also in the construction elevator device according to the second embodiment, as in the first embodiment, the ropes (hanging lines) of the machine room unit lifting machines 9a, 9b, 9c and the hanging points 21a, 21b, 21c. Therefore, the work platform 5 can be prevented from interfering with each other. In addition, the inclination of the machine room unit 6 can be effectively prevented, and the stability of the machine room unit 6 can be maintained. It is possible to prevent an overload on one machine room unit lifting machine.

Further, in the second embodiment, among the hanging points 21a, 21b, 21c of the machine room unit 6, the hanging points 21a, 21b sandwich the car side virtual straight line L1 connecting the pair of car side guide rails 101a, 101b. It is arranged on the opposite side of the center of gravity G of the machine room unit 6. As a result, the hanging points 21a and 21b are not only arranged outside the contour of the work platform 5, but also arranged outside the center of gravity G with respect to the car side virtual straight line L1. As a result, even if an unbalanced load is generated in the machine room unit 6, it is possible to prevent the car-side guide rails 101a and 101b from being overloaded.

The center of gravity G of the machine room unit 6 changes depending on the size of the hoistway of the target elevator device and the installation position of the machine (hoisting machine). Further, the mounting positions of the pair of car-side guide rails 101a and 101b also change according to the target elevator device. Therefore, the hanging points 21a, 21b, and 21c in the construction elevator device of this embodiment are determined according to the center of gravity G of the machine room unit 6 and the positions of the pair of car-side guide rails 101a and 101b.

3. Third Embodiment [Hanging Point Position of Machine Room Unit]
Hereinafter, a construction elevator device according to a third embodiment of the present invention will be described with reference to FIG.
FIG. 4 is a plan view showing the arrangement relationship between the machine room unit lifting machine, the machine room unit, the car, and the counterweight of the construction elevator device according to the third embodiment.

The construction elevator device according to the third embodiment has the same configuration as the construction elevator device according to the above-mentioned second embodiment, except that the machine room unit lifting machines 9a, 9b, 9c is the position of the hanging point of the machine room unit 6. Therefore, here, the hanging point position of the machine room unit 6 according to the third embodiment will be described, and the description of the configuration common to the second embodiment will be omitted.

A counterweight 18 is placed below the machine room unit 6 (see Fig. 1). As shown in FIG. 4, the hoistway 100 is provided with a pair of weight-side guide rails 102a and 102b for guiding the counterweight 18 in the vertical direction. The pair of weight-side guide rails 102a and 102b extend along wall surfaces of the hoistway 100 that face each other.

The weight-side virtual straight line L2 connecting the pair of weight-side guide rails 102a and 102b is substantially parallel to the car-side virtual straight line L1 connecting the pair of car-side guide rails 101a and 101b. That is, the pair of weight-side guide rails 102a and 102b and the pair of car-side guide rails 101a and 101b are provided on a pair of wall surfaces of the hoistway 100 that face each other.

The counterweight 18 is provided with a pair of weight-side guide shoes (not shown) slidably engaged with the pair of weight-side guide rails 102a and 102b. Further, the machine room unit 6 is provided with a pair of machine room side guide shoes 32a, 32b slidably engaged with the pair of weight side guide rails 102a, 102b. Therefore, the pair of weight-side guide rails 102a and 102b guide the machine room unit 6 in the vertical direction.

The hanging point position of the machine room unit 6 according to the third embodiment satisfies all the conditions of the hanging point position of the machine room unit 6 according to the second embodiment. Therefore, also in the construction elevator apparatus according to the third embodiment, as in the second embodiment, the ropes (hanging lines) of the machine room unit lifting machines 9a, 9b, 9c and the hanging points 21a, 21b, 21c are provided. Therefore, the work platform 5 can be prevented from interfering with each other.

Also, the inclination of the machine room unit 6 can be effectively prevented, and the stability of the machine room unit 6 can be maintained. It is possible to prevent an overload on one machine room unit lifting machine. Even if an unbalanced load is generated in the machine room unit 6, it is possible to prevent the car-side guide rails 101a and 101b from being overloaded.

Furthermore, in the third embodiment, among the hanging points 21a, 21b, 21c of the machine room unit 6, the hanging point 21c is arranged on the opposite side of the center of gravity G of the machine room unit 6 with the weight side virtual straight line L2 interposed therebetween. ing. As a result, the hanging point 21c is arranged not only on the outer side of the contour of the work platform 5 but also on the outer side opposite to the center of gravity G with respect to the weight side virtual straight line L2. As a result, even if an unbalanced load is generated in the machine room unit 6, it is possible to prevent the pair of weight-side guide rails 102a and 102b from being overloaded.

The center of gravity G of the machine room unit 6 changes depending on the size of the hoistway of the target elevator device and the installation position of the machine (hoisting machine). Further, the mounting positions of the pair of car-side guide rails 101a and 101b and the pair of weight-side guide rails 102a and 102b also change according to the target elevator device. Therefore, the hanging points 21a, 21b, and 21c in the construction elevator apparatus of this embodiment are determined according to the center of gravity G of the machine room unit 6 and the positions of various guide rails.

4. Fourth embodiment [Construction of construction elevator device]
Hereinafter, a construction elevator device according to a fourth embodiment of the present invention will be described with reference to FIG.
FIG. 5 is a schematic configuration diagram of a construction elevator device according to the fourth embodiment.

The construction elevator device according to the fourth embodiment has the same configuration as the construction elevator device according to the first embodiment described above, except that the lifting machine for machine room units and the mounting of the lifting machine are different. It is a department. Therefore, here, the machine room unit lifting machine and the lifting machine mounting portion according to the fourth embodiment will be described, and the description of the configuration common to the first embodiment will be omitted.

As shown in FIG. 5, the construction elevator device 41 according to the fourth embodiment includes a first support member 3, a second support member 4, a work platform 5, a machine room unit 42, and a support member lifter. A heavy machine 7, a work platform lifter 8, and a machine room unit lifter 43a, 43b, 43c are provided.

The machine room unit 42 is arranged below the work platform 5. The machine room unit 42 is suspended from the second support member 4 by the machine room unit hoisting machines 43a, 43b, 43c, and is configured to be movable in the vertical direction.

The machine room unit 42 has a movable support portion 13 that is movably engaged with the hoistway 100. In addition, the machine room unit 42 includes a hoisting machine 15, a main rope 16 wound around the sheave of the hoisting machine 15, a car 17 connected to one end of the main rope 16, and the other end of the main rope 16. It has a counterweight 18 connected thereto.

Furthermore, a lifting machine attachment part 45 is connected to the upper part of the machine room unit 42. The lifting machine mounting portion 45 has a mounting plate 46 facing the top surface of the machine room unit 42 with a predetermined distance therebetween, and a plurality of columns 47 supporting the mounting plate 46. On the mounting plate 46 of the lifting machine mounting portion 45, hanging-type machine room unit lifting machines 43a, 43b, 43c are mounted.

The turning pulleys 48a, 48b, and 48c are rotatably supported on the top surface of the machine room unit 42. The turning pulleys 48a, 48b, 48c are wound with ropes (hanging ropes) of the machine room unit lifting machines 43a, 43b, 43c, and the upper ends of the hanging ropes are connected to the second support member. ..

The hoisting point of the machine room unit 42 by the machine room unit hoisting machines 43a, 43b, 43c is arranged at the hoisting point position described in the first to third embodiments. Therefore, also in the construction elevator device 41 of the present embodiment, it is possible to obtain the same effects as those of the above-mentioned first to third embodiments. For example, it is possible to prevent the work platform 5 from interfering with the ropes (hanging lines) of the machine room unit hoisting machines 43a, 43b, 43c or the hanging points. Therefore, the machine room unit 42 can be lifted without carrying out the work platform 5 to the outside of the hoistway 100.

Further, since the construction elevator device 41 of the present embodiment is provided with the lifting machine mounting portion 45, the hanging machine room unit lifting machines 43a, 43b, 43c can be applied.

5. Summary As described above, the construction elevator devices according to the above-described first to fourth examples include the support member (second support member 4) provided on the hoistway (hoistway 100) and the support member. A work platform (work platform 5) and a machine room unit (machine room unit 6) arranged below the member, and a work platform lifting machine (for the work platform) in which the work platform is movably suspended from a support member in the vertical direction. A lifting machine 8) and a lifting machine for machine room unit (a lifting machine 9a, 9b, 9c or 43a, 43b, 43c for machine room unit) in which the machine room unit is movably suspended in a vertical direction from a supporting member. I have it.
The machine room unit lifting machine is provided in three or more units, and the machine room unit has three or more hanging points. When viewed from the virtual horizontal plane above the machine room unit, the distance from the center of gravity (center of gravity G) of the machine room unit to each suspension point is approximately equal, and within the area surrounded by virtual straight lines connecting the suspension points. The center of gravity is located. The work platform is arranged between the support member and the machine room unit. When viewed from a virtual horizontal plane above the work platform, each hanging point of the machine room unit is located outside the contour of the work platform.

As a result, even if the work platform is moved up and down, it is possible to prevent the work platform from interfering with the ropes (hanging lines) of the lifting machine for machine room units and to carry the work platform out of the hoistway. Even without it, the machine room unit can be lifted. Further, since the load is evenly applied to the three suspension points of the machine room unit, it is possible to effectively prevent the machine room unit from tilting and to maintain the stability of the machine room unit. Further, the machine room unit can be lifted while preventing an overload on one machine room unit lifting machine.

In the hoistway in which the construction elevator devices according to the second and third embodiments described above are arranged, a pair of car-side guide rails (a pair of car-side guide rails) that guide the car (car 17) in the ascending / descending direction. 101a, 101b) are provided. Then, among the three or more suspension points of the machine room unit, at least one suspension point (suspension points 21a, 21b) has a car side virtual straight line (car side virtual straight line L1) that connects a pair of car side guide rails. It is placed on the opposite side of the center of gravity across. As a result, even if an unbalanced load occurs in the machine room unit, it is possible to prevent an overload from being applied to the car-side guide rail.

Further, in the hoistway in which the construction elevator device according to the third embodiment described above is arranged, a pair of counterweight-side guide rails (a pair of fishing rods) that guide the counterweight (counterweight 18) in the vertical direction. Fitting weight side guide rails 102a and 102b) are provided. The weight-side virtual straight line (weight-side virtual straight line L2) that connects the pair of counterweight-side guide rails is substantially parallel to the car-side virtual straight line (car-side virtual straight line L1). Then, among the three or more suspension points of the machine room unit, the suspension points (suspension points 21c) other than the suspension points (suspension points 21a and 21b) arranged on the opposite side of the center of gravity with the car side virtual straight line interposed therebetween are It is placed on the opposite side of the center of gravity with a virtual straight line on the weight side. This makes it possible to prevent an overload from being applied to the pair of weight-side guide rails even if an unbalanced load occurs in the machine room unit.

Above, an example of the construction elevator device of the present invention has been described, including its effects. However, the present invention is not limited to the above-described embodiments, but includes various modifications. For example, the above-described embodiments describe the present invention in detail in an easy-to-understand manner, and the present invention is not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.

Also, in the above-described first to fourth embodiments, the configuration is such that three machine room unit lifting machines are used. However, the construction elevator device according to the present invention may be configured to use four or more machine room unit lifting machines, and may be provided with four or more suspension points. For example, three suspension points and one auxiliary suspension point may be provided.

In the second embodiment described above, the suspension points 21a and 21b are arranged on the opposite side of the center of gravity G of the machine room unit 6 with the car side virtual straight line L1 connecting the pair of car side guide rails 101a and 101b interposed therebetween. did. However, in the construction elevator device according to the present invention, at least one suspension point may be provided on the side opposite to the center of gravity G of the machine room unit 6 with the car side virtual straight line L1 interposed therebetween.

Further, in the above-described third embodiment, the suspension point 21c is arranged on the opposite side of the center of gravity G of the machine room unit 6 with the weight side virtual straight line L2 connecting between the pair of counterweight side guide rails 102a, 102b interposed therebetween. did. However, in the construction elevator device according to the present invention, two or more suspension points may be arranged on the side opposite to the center of gravity G of the machine room unit 6 with the weight side virtual straight line L2 interposed therebetween.

In the third embodiment described above, the suspension points 21a and 21b are arranged on the opposite side of the center of gravity G of the machine room unit 6 with the car side virtual straight line L1 interposed therebetween, and the suspension point 21c is arranged on the weight side virtual straight line L2. It was arranged on the opposite side of the center of gravity G of the machine room unit 6 with the sandwiched therebetween. However, in the construction elevator device according to the present invention, at least one suspension point is arranged on the side opposite to the center of gravity G of the machine room unit 6 with the weight-side virtual straight line L2 interposed therebetween, and the remaining suspension points are The positions may be substantially equal to the center of gravity G, and only the condition that they are arranged outside the contour of the work platform 5 may be satisfied.

1,41 ... Elevator device for construction 3 ... First support member 4 ... Second support member 5 ... Work platform 6,42 ... Machine room unit 7 ... Lifting machine for support member 8 ... Lifting machine for work platform 9a, 9b, 9c, 43a, 43b, 43c ... Lifting machine for machine room unit 12, 13 ... Movable support part 15 ... Hoisting machine 16 ... Main Cable 17 ... Cage 18 ... Counterweights 21a, 21b, 21c ... Suspending points 31a, 31b, 32a, 32b ... Machine room side guide shoe 45 ... Lifter attachment part 46 ... Attachment Plate 47 ... Struts 48a, 48b, 48c ... Turning pulley 100 ... Hoistway 101a ... Car side guide rail 102a ... Weight side guide rail L1 ... Car side virtual straight line L2 ... Oh Ri side imaginary straight line

Claims (3)

A support member provided in the hoistway, a work platform and a machine room unit arranged below the support member, and a work platform lifting machine that suspends the work platform from the support member in a vertically movable manner. And a machine room unit lifting machine that suspends the machine room unit from the support member so that the machine room unit can move in a vertical direction,
The machine room unit lifting machine is provided in three or more units, the machine room unit has three or more hanging points,
When viewed from a virtual horizontal plane above the machine room unit, the distance from the center of gravity of the machine room unit to each suspension point is substantially equal, and the center of gravity is within a region surrounded by virtual straight lines connecting the suspension points. Is located
The work platform is disposed between the support member and the machine room unit,
When viewed from a virtual horizontal plane above the work platform, each hanging point of the machine room unit is located outside the contour of the work platform. The hoistway is provided with a pair of car-side guide rails for guiding the car and the machine room unit in the hoisting direction,
Of the three or more suspension points of the machine room unit, at least one suspension point is arranged on the opposite side of the center of gravity with a car-side virtual straight line connecting the pair of car-side guide rails sandwiched therebetween. The construction elevator device according to claim 1, wherein: The hoistway is provided with a pair of counterweight-side guide rails for guiding the counterweight and the machine room unit in the vertical direction,
The weight side virtual straight line connecting between the pair of counterweight side guide rails is substantially parallel to the car side virtual straight line,
Of the three or more suspension points of the machine room unit, the suspension points other than the suspension points arranged on the opposite side of the center of gravity with the car side virtual straight line interposed therebetween are the center of gravity with the weight side virtual straight line interposed therebetween. It is arrange | positioned at the other side. The construction elevator device of Claim 2 characterized by the above-mentioned.

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